Commit | Line | Data |
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e23eba97 | 1 | /* RISC-V-specific support for ELF. |
250d07de | 2 | Copyright (C) 2011-2021 Free Software Foundation, Inc. |
e23eba97 NC |
3 | |
4 | Contributed by Andrew Waterman (andrew@sifive.com). | |
5 | Based on TILE-Gx and MIPS targets. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; see the file COPYING3. If not, | |
21 | see <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/riscv.h" | |
3d73d29e | 28 | #include "opcode/riscv.h" |
e23eba97 NC |
29 | #include "libiberty.h" |
30 | #include "elfxx-riscv.h" | |
1080bf78 | 31 | #include "safe-ctype.h" |
3d73d29e | 32 | #include "cpu-riscv.h" |
e23eba97 NC |
33 | |
34 | #define MINUS_ONE ((bfd_vma)0 - 1) | |
35 | ||
57593436 KLC |
36 | /* Special handler for ADD/SUB relocations that allows them to be filled out |
37 | both in the pre-linked and post-linked file. This is necessary to make | |
38 | pre-linked debug info work, as due to linker relaxations we need to emit | |
39 | relocations for the debug info. */ | |
40 | static bfd_reloc_status_type riscv_elf_add_sub_reloc | |
41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
42 | ||
e23eba97 NC |
43 | /* The relocation table used for SHT_RELA sections. */ |
44 | ||
45 | static reloc_howto_type howto_table[] = | |
46 | { | |
47 | /* No relocation. */ | |
48 | HOWTO (R_RISCV_NONE, /* type */ | |
49 | 0, /* rightshift */ | |
50 | 3, /* size */ | |
51 | 0, /* bitsize */ | |
0a1b45a2 | 52 | false, /* pc_relative */ |
e23eba97 NC |
53 | 0, /* bitpos */ |
54 | complain_overflow_dont, /* complain_on_overflow */ | |
55 | bfd_elf_generic_reloc, /* special_function */ | |
56 | "R_RISCV_NONE", /* name */ | |
0a1b45a2 | 57 | false, /* partial_inplace */ |
e23eba97 NC |
58 | 0, /* src_mask */ |
59 | 0, /* dst_mask */ | |
0a1b45a2 | 60 | false), /* pcrel_offset */ |
e23eba97 NC |
61 | |
62 | /* 32 bit relocation. */ | |
63 | HOWTO (R_RISCV_32, /* type */ | |
64 | 0, /* rightshift */ | |
65 | 2, /* size */ | |
66 | 32, /* bitsize */ | |
0a1b45a2 | 67 | false, /* pc_relative */ |
e23eba97 NC |
68 | 0, /* bitpos */ |
69 | complain_overflow_dont, /* complain_on_overflow */ | |
70 | bfd_elf_generic_reloc, /* special_function */ | |
71 | "R_RISCV_32", /* name */ | |
0a1b45a2 | 72 | false, /* partial_inplace */ |
e23eba97 | 73 | 0, /* src_mask */ |
b1b11e92 | 74 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 75 | false), /* pcrel_offset */ |
e23eba97 NC |
76 | |
77 | /* 64 bit relocation. */ | |
78 | HOWTO (R_RISCV_64, /* type */ | |
79 | 0, /* rightshift */ | |
80 | 4, /* size */ | |
81 | 64, /* bitsize */ | |
0a1b45a2 | 82 | false, /* pc_relative */ |
e23eba97 NC |
83 | 0, /* bitpos */ |
84 | complain_overflow_dont, /* complain_on_overflow */ | |
85 | bfd_elf_generic_reloc, /* special_function */ | |
86 | "R_RISCV_64", /* name */ | |
0a1b45a2 | 87 | false, /* partial_inplace */ |
e23eba97 NC |
88 | 0, /* src_mask */ |
89 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 90 | false), /* pcrel_offset */ |
e23eba97 NC |
91 | |
92 | /* Relocation against a local symbol in a shared object. */ | |
93 | HOWTO (R_RISCV_RELATIVE, /* type */ | |
94 | 0, /* rightshift */ | |
95 | 2, /* size */ | |
96 | 32, /* bitsize */ | |
0a1b45a2 | 97 | false, /* pc_relative */ |
e23eba97 NC |
98 | 0, /* bitpos */ |
99 | complain_overflow_dont, /* complain_on_overflow */ | |
100 | bfd_elf_generic_reloc, /* special_function */ | |
101 | "R_RISCV_RELATIVE", /* name */ | |
0a1b45a2 | 102 | false, /* partial_inplace */ |
e23eba97 | 103 | 0, /* src_mask */ |
b1b11e92 | 104 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 105 | false), /* pcrel_offset */ |
e23eba97 NC |
106 | |
107 | HOWTO (R_RISCV_COPY, /* type */ | |
108 | 0, /* rightshift */ | |
109 | 0, /* this one is variable size */ | |
110 | 0, /* bitsize */ | |
0a1b45a2 | 111 | false, /* pc_relative */ |
e23eba97 NC |
112 | 0, /* bitpos */ |
113 | complain_overflow_bitfield, /* complain_on_overflow */ | |
114 | bfd_elf_generic_reloc, /* special_function */ | |
115 | "R_RISCV_COPY", /* name */ | |
0a1b45a2 | 116 | false, /* partial_inplace */ |
07d6d2b8 AM |
117 | 0, /* src_mask */ |
118 | 0, /* dst_mask */ | |
0a1b45a2 | 119 | false), /* pcrel_offset */ |
e23eba97 NC |
120 | |
121 | HOWTO (R_RISCV_JUMP_SLOT, /* type */ | |
122 | 0, /* rightshift */ | |
123 | 4, /* size */ | |
124 | 64, /* bitsize */ | |
0a1b45a2 | 125 | false, /* pc_relative */ |
e23eba97 NC |
126 | 0, /* bitpos */ |
127 | complain_overflow_bitfield, /* complain_on_overflow */ | |
128 | bfd_elf_generic_reloc, /* special_function */ | |
129 | "R_RISCV_JUMP_SLOT", /* name */ | |
0a1b45a2 | 130 | false, /* partial_inplace */ |
07d6d2b8 AM |
131 | 0, /* src_mask */ |
132 | 0, /* dst_mask */ | |
0a1b45a2 | 133 | false), /* pcrel_offset */ |
e23eba97 NC |
134 | |
135 | /* Dynamic TLS relocations. */ | |
136 | HOWTO (R_RISCV_TLS_DTPMOD32, /* type */ | |
137 | 0, /* rightshift */ | |
b1b11e92 | 138 | 2, /* size */ |
e23eba97 | 139 | 32, /* bitsize */ |
0a1b45a2 | 140 | false, /* pc_relative */ |
e23eba97 NC |
141 | 0, /* bitpos */ |
142 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 143 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 144 | "R_RISCV_TLS_DTPMOD32", /* name */ |
0a1b45a2 | 145 | false, /* partial_inplace */ |
1d65abb5 | 146 | 0, /* src_mask */ |
b1b11e92 | 147 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 148 | false), /* pcrel_offset */ |
e23eba97 NC |
149 | |
150 | HOWTO (R_RISCV_TLS_DTPMOD64, /* type */ | |
151 | 0, /* rightshift */ | |
152 | 4, /* size */ | |
153 | 64, /* bitsize */ | |
0a1b45a2 | 154 | false, /* pc_relative */ |
e23eba97 NC |
155 | 0, /* bitpos */ |
156 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 157 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 158 | "R_RISCV_TLS_DTPMOD64", /* name */ |
0a1b45a2 | 159 | false, /* partial_inplace */ |
1d65abb5 | 160 | 0, /* src_mask */ |
e23eba97 | 161 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 162 | false), /* pcrel_offset */ |
e23eba97 NC |
163 | |
164 | HOWTO (R_RISCV_TLS_DTPREL32, /* type */ | |
165 | 0, /* rightshift */ | |
b1b11e92 | 166 | 2, /* size */ |
e23eba97 | 167 | 32, /* bitsize */ |
0a1b45a2 | 168 | false, /* pc_relative */ |
e23eba97 NC |
169 | 0, /* bitpos */ |
170 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 171 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 172 | "R_RISCV_TLS_DTPREL32", /* name */ |
0a1b45a2 | 173 | true, /* partial_inplace */ |
1d65abb5 | 174 | 0, /* src_mask */ |
b1b11e92 | 175 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 176 | false), /* pcrel_offset */ |
e23eba97 NC |
177 | |
178 | HOWTO (R_RISCV_TLS_DTPREL64, /* type */ | |
179 | 0, /* rightshift */ | |
180 | 4, /* size */ | |
181 | 64, /* bitsize */ | |
0a1b45a2 | 182 | false, /* pc_relative */ |
e23eba97 NC |
183 | 0, /* bitpos */ |
184 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 185 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 186 | "R_RISCV_TLS_DTPREL64", /* name */ |
0a1b45a2 | 187 | true, /* partial_inplace */ |
1d65abb5 | 188 | 0, /* src_mask */ |
e23eba97 | 189 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 190 | false), /* pcrel_offset */ |
e23eba97 NC |
191 | |
192 | HOWTO (R_RISCV_TLS_TPREL32, /* type */ | |
193 | 0, /* rightshift */ | |
194 | 2, /* size */ | |
195 | 32, /* bitsize */ | |
0a1b45a2 | 196 | false, /* pc_relative */ |
e23eba97 NC |
197 | 0, /* bitpos */ |
198 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 199 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 200 | "R_RISCV_TLS_TPREL32", /* name */ |
0a1b45a2 | 201 | false, /* partial_inplace */ |
1d65abb5 | 202 | 0, /* src_mask */ |
b1b11e92 | 203 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 204 | false), /* pcrel_offset */ |
e23eba97 NC |
205 | |
206 | HOWTO (R_RISCV_TLS_TPREL64, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 4, /* size */ | |
209 | 64, /* bitsize */ | |
0a1b45a2 | 210 | false, /* pc_relative */ |
e23eba97 NC |
211 | 0, /* bitpos */ |
212 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 213 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 214 | "R_RISCV_TLS_TPREL64", /* name */ |
0a1b45a2 | 215 | false, /* partial_inplace */ |
1d65abb5 | 216 | 0, /* src_mask */ |
e23eba97 | 217 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 218 | false), /* pcrel_offset */ |
e23eba97 NC |
219 | |
220 | /* Reserved for future relocs that the dynamic linker must understand. */ | |
221 | EMPTY_HOWTO (12), | |
222 | EMPTY_HOWTO (13), | |
223 | EMPTY_HOWTO (14), | |
224 | EMPTY_HOWTO (15), | |
225 | ||
226 | /* 12-bit PC-relative branch offset. */ | |
227 | HOWTO (R_RISCV_BRANCH, /* type */ | |
228 | 0, /* rightshift */ | |
229 | 2, /* size */ | |
230 | 32, /* bitsize */ | |
0a1b45a2 | 231 | true, /* pc_relative */ |
e23eba97 NC |
232 | 0, /* bitpos */ |
233 | complain_overflow_signed, /* complain_on_overflow */ | |
234 | bfd_elf_generic_reloc, /* special_function */ | |
235 | "R_RISCV_BRANCH", /* name */ | |
0a1b45a2 | 236 | false, /* partial_inplace */ |
e23eba97 | 237 | 0, /* src_mask */ |
5a9f5403 | 238 | ENCODE_BTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 239 | true), /* pcrel_offset */ |
e23eba97 NC |
240 | |
241 | /* 20-bit PC-relative jump offset. */ | |
242 | HOWTO (R_RISCV_JAL, /* type */ | |
243 | 0, /* rightshift */ | |
244 | 2, /* size */ | |
245 | 32, /* bitsize */ | |
0a1b45a2 | 246 | true, /* pc_relative */ |
e23eba97 NC |
247 | 0, /* bitpos */ |
248 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
249 | bfd_elf_generic_reloc, /* special_function */ |
250 | "R_RISCV_JAL", /* name */ | |
0a1b45a2 | 251 | false, /* partial_inplace */ |
e23eba97 | 252 | 0, /* src_mask */ |
5a9f5403 | 253 | ENCODE_JTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 254 | true), /* pcrel_offset */ |
e23eba97 NC |
255 | |
256 | /* 32-bit PC-relative function call (AUIPC/JALR). */ | |
257 | HOWTO (R_RISCV_CALL, /* type */ | |
258 | 0, /* rightshift */ | |
b1b11e92 | 259 | 4, /* size */ |
e23eba97 | 260 | 64, /* bitsize */ |
0a1b45a2 | 261 | true, /* pc_relative */ |
e23eba97 NC |
262 | 0, /* bitpos */ |
263 | complain_overflow_dont, /* complain_on_overflow */ | |
264 | bfd_elf_generic_reloc, /* special_function */ | |
265 | "R_RISCV_CALL", /* name */ | |
0a1b45a2 | 266 | false, /* partial_inplace */ |
e23eba97 NC |
267 | 0, /* src_mask */ |
268 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
269 | /* dst_mask */ | |
0a1b45a2 | 270 | true), /* pcrel_offset */ |
e23eba97 | 271 | |
1d65abb5 | 272 | /* Like R_RISCV_CALL, but not locally binding. */ |
e23eba97 NC |
273 | HOWTO (R_RISCV_CALL_PLT, /* type */ |
274 | 0, /* rightshift */ | |
b1b11e92 | 275 | 4, /* size */ |
e23eba97 | 276 | 64, /* bitsize */ |
0a1b45a2 | 277 | true, /* pc_relative */ |
e23eba97 NC |
278 | 0, /* bitpos */ |
279 | complain_overflow_dont, /* complain_on_overflow */ | |
280 | bfd_elf_generic_reloc, /* special_function */ | |
281 | "R_RISCV_CALL_PLT", /* name */ | |
0a1b45a2 | 282 | false, /* partial_inplace */ |
e23eba97 NC |
283 | 0, /* src_mask */ |
284 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
285 | /* dst_mask */ | |
0a1b45a2 | 286 | true), /* pcrel_offset */ |
e23eba97 NC |
287 | |
288 | /* High 20 bits of 32-bit PC-relative GOT access. */ | |
289 | HOWTO (R_RISCV_GOT_HI20, /* type */ | |
290 | 0, /* rightshift */ | |
291 | 2, /* size */ | |
292 | 32, /* bitsize */ | |
0a1b45a2 | 293 | true, /* pc_relative */ |
e23eba97 NC |
294 | 0, /* bitpos */ |
295 | complain_overflow_dont, /* complain_on_overflow */ | |
296 | bfd_elf_generic_reloc, /* special_function */ | |
297 | "R_RISCV_GOT_HI20", /* name */ | |
0a1b45a2 | 298 | false, /* partial_inplace */ |
e23eba97 NC |
299 | 0, /* src_mask */ |
300 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 301 | false), /* pcrel_offset */ |
e23eba97 NC |
302 | |
303 | /* High 20 bits of 32-bit PC-relative TLS IE GOT access. */ | |
304 | HOWTO (R_RISCV_TLS_GOT_HI20, /* type */ | |
305 | 0, /* rightshift */ | |
306 | 2, /* size */ | |
307 | 32, /* bitsize */ | |
0a1b45a2 | 308 | true, /* pc_relative */ |
e23eba97 NC |
309 | 0, /* bitpos */ |
310 | complain_overflow_dont, /* complain_on_overflow */ | |
311 | bfd_elf_generic_reloc, /* special_function */ | |
312 | "R_RISCV_TLS_GOT_HI20", /* name */ | |
0a1b45a2 | 313 | false, /* partial_inplace */ |
e23eba97 NC |
314 | 0, /* src_mask */ |
315 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 316 | false), /* pcrel_offset */ |
e23eba97 NC |
317 | |
318 | /* High 20 bits of 32-bit PC-relative TLS GD GOT reference. */ | |
319 | HOWTO (R_RISCV_TLS_GD_HI20, /* type */ | |
320 | 0, /* rightshift */ | |
321 | 2, /* size */ | |
322 | 32, /* bitsize */ | |
0a1b45a2 | 323 | true, /* pc_relative */ |
e23eba97 NC |
324 | 0, /* bitpos */ |
325 | complain_overflow_dont, /* complain_on_overflow */ | |
326 | bfd_elf_generic_reloc, /* special_function */ | |
327 | "R_RISCV_TLS_GD_HI20", /* name */ | |
0a1b45a2 | 328 | false, /* partial_inplace */ |
e23eba97 NC |
329 | 0, /* src_mask */ |
330 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 331 | false), /* pcrel_offset */ |
e23eba97 NC |
332 | |
333 | /* High 20 bits of 32-bit PC-relative reference. */ | |
334 | HOWTO (R_RISCV_PCREL_HI20, /* type */ | |
335 | 0, /* rightshift */ | |
336 | 2, /* size */ | |
337 | 32, /* bitsize */ | |
0a1b45a2 | 338 | true, /* pc_relative */ |
e23eba97 NC |
339 | 0, /* bitpos */ |
340 | complain_overflow_dont, /* complain_on_overflow */ | |
341 | bfd_elf_generic_reloc, /* special_function */ | |
342 | "R_RISCV_PCREL_HI20", /* name */ | |
0a1b45a2 | 343 | false, /* partial_inplace */ |
e23eba97 NC |
344 | 0, /* src_mask */ |
345 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 346 | true), /* pcrel_offset */ |
e23eba97 NC |
347 | |
348 | /* Low 12 bits of a 32-bit PC-relative load or add. */ | |
349 | HOWTO (R_RISCV_PCREL_LO12_I, /* type */ | |
350 | 0, /* rightshift */ | |
351 | 2, /* size */ | |
352 | 32, /* bitsize */ | |
0a1b45a2 | 353 | false, /* pc_relative */ |
e23eba97 NC |
354 | 0, /* bitpos */ |
355 | complain_overflow_dont, /* complain_on_overflow */ | |
356 | bfd_elf_generic_reloc, /* special_function */ | |
357 | "R_RISCV_PCREL_LO12_I", /* name */ | |
0a1b45a2 | 358 | false, /* partial_inplace */ |
e23eba97 NC |
359 | 0, /* src_mask */ |
360 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 361 | false), /* pcrel_offset */ |
e23eba97 NC |
362 | |
363 | /* Low 12 bits of a 32-bit PC-relative store. */ | |
364 | HOWTO (R_RISCV_PCREL_LO12_S, /* type */ | |
365 | 0, /* rightshift */ | |
366 | 2, /* size */ | |
367 | 32, /* bitsize */ | |
0a1b45a2 | 368 | false, /* pc_relative */ |
e23eba97 NC |
369 | 0, /* bitpos */ |
370 | complain_overflow_dont, /* complain_on_overflow */ | |
371 | bfd_elf_generic_reloc, /* special_function */ | |
372 | "R_RISCV_PCREL_LO12_S", /* name */ | |
0a1b45a2 | 373 | false, /* partial_inplace */ |
e23eba97 NC |
374 | 0, /* src_mask */ |
375 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 376 | false), /* pcrel_offset */ |
e23eba97 NC |
377 | |
378 | /* High 20 bits of 32-bit absolute address. */ | |
379 | HOWTO (R_RISCV_HI20, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size */ | |
382 | 32, /* bitsize */ | |
0a1b45a2 | 383 | false, /* pc_relative */ |
e23eba97 NC |
384 | 0, /* bitpos */ |
385 | complain_overflow_dont, /* complain_on_overflow */ | |
386 | bfd_elf_generic_reloc, /* special_function */ | |
387 | "R_RISCV_HI20", /* name */ | |
0a1b45a2 | 388 | false, /* partial_inplace */ |
e23eba97 NC |
389 | 0, /* src_mask */ |
390 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 391 | false), /* pcrel_offset */ |
e23eba97 NC |
392 | |
393 | /* High 12 bits of 32-bit load or add. */ | |
394 | HOWTO (R_RISCV_LO12_I, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size */ | |
397 | 32, /* bitsize */ | |
0a1b45a2 | 398 | false, /* pc_relative */ |
e23eba97 NC |
399 | 0, /* bitpos */ |
400 | complain_overflow_dont, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_RISCV_LO12_I", /* name */ | |
0a1b45a2 | 403 | false, /* partial_inplace */ |
e23eba97 NC |
404 | 0, /* src_mask */ |
405 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 406 | false), /* pcrel_offset */ |
e23eba97 NC |
407 | |
408 | /* High 12 bits of 32-bit store. */ | |
409 | HOWTO (R_RISCV_LO12_S, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 2, /* size */ | |
412 | 32, /* bitsize */ | |
0a1b45a2 | 413 | false, /* pc_relative */ |
e23eba97 NC |
414 | 0, /* bitpos */ |
415 | complain_overflow_dont, /* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_RISCV_LO12_S", /* name */ | |
0a1b45a2 | 418 | false, /* partial_inplace */ |
e23eba97 NC |
419 | 0, /* src_mask */ |
420 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 421 | false), /* pcrel_offset */ |
e23eba97 NC |
422 | |
423 | /* High 20 bits of TLS LE thread pointer offset. */ | |
424 | HOWTO (R_RISCV_TPREL_HI20, /* type */ | |
425 | 0, /* rightshift */ | |
426 | 2, /* size */ | |
427 | 32, /* bitsize */ | |
0a1b45a2 | 428 | false, /* pc_relative */ |
e23eba97 NC |
429 | 0, /* bitpos */ |
430 | complain_overflow_signed, /* complain_on_overflow */ | |
431 | bfd_elf_generic_reloc, /* special_function */ | |
432 | "R_RISCV_TPREL_HI20", /* name */ | |
0a1b45a2 | 433 | true, /* partial_inplace */ |
e23eba97 NC |
434 | 0, /* src_mask */ |
435 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 436 | false), /* pcrel_offset */ |
e23eba97 NC |
437 | |
438 | /* Low 12 bits of TLS LE thread pointer offset for loads and adds. */ | |
439 | HOWTO (R_RISCV_TPREL_LO12_I, /* type */ | |
440 | 0, /* rightshift */ | |
441 | 2, /* size */ | |
442 | 32, /* bitsize */ | |
0a1b45a2 | 443 | false, /* pc_relative */ |
e23eba97 NC |
444 | 0, /* bitpos */ |
445 | complain_overflow_signed, /* complain_on_overflow */ | |
446 | bfd_elf_generic_reloc, /* special_function */ | |
447 | "R_RISCV_TPREL_LO12_I", /* name */ | |
0a1b45a2 | 448 | false, /* partial_inplace */ |
e23eba97 NC |
449 | 0, /* src_mask */ |
450 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 451 | false), /* pcrel_offset */ |
e23eba97 NC |
452 | |
453 | /* Low 12 bits of TLS LE thread pointer offset for stores. */ | |
454 | HOWTO (R_RISCV_TPREL_LO12_S, /* type */ | |
455 | 0, /* rightshift */ | |
456 | 2, /* size */ | |
457 | 32, /* bitsize */ | |
0a1b45a2 | 458 | false, /* pc_relative */ |
e23eba97 NC |
459 | 0, /* bitpos */ |
460 | complain_overflow_signed, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* special_function */ | |
462 | "R_RISCV_TPREL_LO12_S", /* name */ | |
0a1b45a2 | 463 | false, /* partial_inplace */ |
e23eba97 NC |
464 | 0, /* src_mask */ |
465 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 466 | false), /* pcrel_offset */ |
e23eba97 | 467 | |
1d65abb5 | 468 | /* TLS LE thread pointer usage. May be relaxed. */ |
e23eba97 NC |
469 | HOWTO (R_RISCV_TPREL_ADD, /* type */ |
470 | 0, /* rightshift */ | |
b1b11e92 AM |
471 | 3, /* size */ |
472 | 0, /* bitsize */ | |
0a1b45a2 | 473 | false, /* pc_relative */ |
e23eba97 NC |
474 | 0, /* bitpos */ |
475 | complain_overflow_dont, /* complain_on_overflow */ | |
476 | bfd_elf_generic_reloc, /* special_function */ | |
477 | "R_RISCV_TPREL_ADD", /* name */ | |
0a1b45a2 | 478 | false, /* partial_inplace */ |
e23eba97 NC |
479 | 0, /* src_mask */ |
480 | 0, /* dst_mask */ | |
0a1b45a2 | 481 | false), /* pcrel_offset */ |
e23eba97 NC |
482 | |
483 | /* 8-bit in-place addition, for local label subtraction. */ | |
484 | HOWTO (R_RISCV_ADD8, /* type */ | |
485 | 0, /* rightshift */ | |
486 | 0, /* size */ | |
0b14696a | 487 | 8, /* bitsize */ |
0a1b45a2 | 488 | false, /* pc_relative */ |
e23eba97 NC |
489 | 0, /* bitpos */ |
490 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 491 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 492 | "R_RISCV_ADD8", /* name */ |
0a1b45a2 | 493 | false, /* partial_inplace */ |
e23eba97 | 494 | 0, /* src_mask */ |
b1b11e92 | 495 | 0xff, /* dst_mask */ |
0a1b45a2 | 496 | false), /* pcrel_offset */ |
e23eba97 NC |
497 | |
498 | /* 16-bit in-place addition, for local label subtraction. */ | |
499 | HOWTO (R_RISCV_ADD16, /* type */ | |
500 | 0, /* rightshift */ | |
501 | 1, /* size */ | |
502 | 16, /* bitsize */ | |
0a1b45a2 | 503 | false, /* pc_relative */ |
e23eba97 NC |
504 | 0, /* bitpos */ |
505 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 506 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 507 | "R_RISCV_ADD16", /* name */ |
0a1b45a2 | 508 | false, /* partial_inplace */ |
e23eba97 | 509 | 0, /* src_mask */ |
b1b11e92 | 510 | 0xffff, /* dst_mask */ |
0a1b45a2 | 511 | false), /* pcrel_offset */ |
e23eba97 NC |
512 | |
513 | /* 32-bit in-place addition, for local label subtraction. */ | |
514 | HOWTO (R_RISCV_ADD32, /* type */ | |
515 | 0, /* rightshift */ | |
516 | 2, /* size */ | |
517 | 32, /* bitsize */ | |
0a1b45a2 | 518 | false, /* pc_relative */ |
e23eba97 NC |
519 | 0, /* bitpos */ |
520 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 521 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 522 | "R_RISCV_ADD32", /* name */ |
0a1b45a2 | 523 | false, /* partial_inplace */ |
e23eba97 | 524 | 0, /* src_mask */ |
b1b11e92 | 525 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 526 | false), /* pcrel_offset */ |
e23eba97 NC |
527 | |
528 | /* 64-bit in-place addition, for local label subtraction. */ | |
529 | HOWTO (R_RISCV_ADD64, /* type */ | |
530 | 0, /* rightshift */ | |
531 | 4, /* size */ | |
532 | 64, /* bitsize */ | |
0a1b45a2 | 533 | false, /* pc_relative */ |
e23eba97 NC |
534 | 0, /* bitpos */ |
535 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 536 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 537 | "R_RISCV_ADD64", /* name */ |
0a1b45a2 | 538 | false, /* partial_inplace */ |
e23eba97 NC |
539 | 0, /* src_mask */ |
540 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 541 | false), /* pcrel_offset */ |
e23eba97 NC |
542 | |
543 | /* 8-bit in-place addition, for local label subtraction. */ | |
544 | HOWTO (R_RISCV_SUB8, /* type */ | |
545 | 0, /* rightshift */ | |
546 | 0, /* size */ | |
547 | 8, /* bitsize */ | |
0a1b45a2 | 548 | false, /* pc_relative */ |
e23eba97 NC |
549 | 0, /* bitpos */ |
550 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 551 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 552 | "R_RISCV_SUB8", /* name */ |
0a1b45a2 | 553 | false, /* partial_inplace */ |
e23eba97 | 554 | 0, /* src_mask */ |
b1b11e92 | 555 | 0xff, /* dst_mask */ |
0a1b45a2 | 556 | false), /* pcrel_offset */ |
e23eba97 NC |
557 | |
558 | /* 16-bit in-place addition, for local label subtraction. */ | |
559 | HOWTO (R_RISCV_SUB16, /* type */ | |
560 | 0, /* rightshift */ | |
561 | 1, /* size */ | |
562 | 16, /* bitsize */ | |
0a1b45a2 | 563 | false, /* pc_relative */ |
e23eba97 NC |
564 | 0, /* bitpos */ |
565 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 566 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 567 | "R_RISCV_SUB16", /* name */ |
0a1b45a2 | 568 | false, /* partial_inplace */ |
e23eba97 | 569 | 0, /* src_mask */ |
b1b11e92 | 570 | 0xffff, /* dst_mask */ |
0a1b45a2 | 571 | false), /* pcrel_offset */ |
e23eba97 NC |
572 | |
573 | /* 32-bit in-place addition, for local label subtraction. */ | |
574 | HOWTO (R_RISCV_SUB32, /* type */ | |
575 | 0, /* rightshift */ | |
576 | 2, /* size */ | |
577 | 32, /* bitsize */ | |
0a1b45a2 | 578 | false, /* pc_relative */ |
e23eba97 NC |
579 | 0, /* bitpos */ |
580 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 581 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 582 | "R_RISCV_SUB32", /* name */ |
0a1b45a2 | 583 | false, /* partial_inplace */ |
e23eba97 | 584 | 0, /* src_mask */ |
b1b11e92 | 585 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 586 | false), /* pcrel_offset */ |
e23eba97 NC |
587 | |
588 | /* 64-bit in-place addition, for local label subtraction. */ | |
589 | HOWTO (R_RISCV_SUB64, /* type */ | |
590 | 0, /* rightshift */ | |
591 | 4, /* size */ | |
592 | 64, /* bitsize */ | |
0a1b45a2 | 593 | false, /* pc_relative */ |
e23eba97 NC |
594 | 0, /* bitpos */ |
595 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 596 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 597 | "R_RISCV_SUB64", /* name */ |
0a1b45a2 | 598 | false, /* partial_inplace */ |
e23eba97 NC |
599 | 0, /* src_mask */ |
600 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 601 | false), /* pcrel_offset */ |
e23eba97 NC |
602 | |
603 | /* GNU extension to record C++ vtable hierarchy */ | |
604 | HOWTO (R_RISCV_GNU_VTINHERIT, /* type */ | |
605 | 0, /* rightshift */ | |
606 | 4, /* size */ | |
607 | 0, /* bitsize */ | |
0a1b45a2 | 608 | false, /* pc_relative */ |
e23eba97 NC |
609 | 0, /* bitpos */ |
610 | complain_overflow_dont, /* complain_on_overflow */ | |
611 | NULL, /* special_function */ | |
612 | "R_RISCV_GNU_VTINHERIT", /* name */ | |
0a1b45a2 | 613 | false, /* partial_inplace */ |
e23eba97 NC |
614 | 0, /* src_mask */ |
615 | 0, /* dst_mask */ | |
0a1b45a2 | 616 | false), /* pcrel_offset */ |
e23eba97 NC |
617 | |
618 | /* GNU extension to record C++ vtable member usage */ | |
619 | HOWTO (R_RISCV_GNU_VTENTRY, /* type */ | |
620 | 0, /* rightshift */ | |
621 | 4, /* size */ | |
622 | 0, /* bitsize */ | |
0a1b45a2 | 623 | false, /* pc_relative */ |
e23eba97 NC |
624 | 0, /* bitpos */ |
625 | complain_overflow_dont, /* complain_on_overflow */ | |
626 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
627 | "R_RISCV_GNU_VTENTRY", /* name */ | |
0a1b45a2 | 628 | false, /* partial_inplace */ |
e23eba97 NC |
629 | 0, /* src_mask */ |
630 | 0, /* dst_mask */ | |
0a1b45a2 | 631 | false), /* pcrel_offset */ |
e23eba97 NC |
632 | |
633 | /* Indicates an alignment statement. The addend field encodes how many | |
634 | bytes of NOPs follow the statement. The desired alignment is the | |
635 | addend rounded up to the next power of two. */ | |
636 | HOWTO (R_RISCV_ALIGN, /* type */ | |
637 | 0, /* rightshift */ | |
b1b11e92 | 638 | 3, /* size */ |
e23eba97 | 639 | 0, /* bitsize */ |
0a1b45a2 | 640 | false, /* pc_relative */ |
e23eba97 NC |
641 | 0, /* bitpos */ |
642 | complain_overflow_dont, /* complain_on_overflow */ | |
643 | bfd_elf_generic_reloc, /* special_function */ | |
644 | "R_RISCV_ALIGN", /* name */ | |
0a1b45a2 | 645 | false, /* partial_inplace */ |
e23eba97 NC |
646 | 0, /* src_mask */ |
647 | 0, /* dst_mask */ | |
0a1b45a2 | 648 | false), /* pcrel_offset */ |
e23eba97 NC |
649 | |
650 | /* 8-bit PC-relative branch offset. */ | |
651 | HOWTO (R_RISCV_RVC_BRANCH, /* type */ | |
652 | 0, /* rightshift */ | |
b1b11e92 AM |
653 | 1, /* size */ |
654 | 16, /* bitsize */ | |
0a1b45a2 | 655 | true, /* pc_relative */ |
e23eba97 NC |
656 | 0, /* bitpos */ |
657 | complain_overflow_signed, /* complain_on_overflow */ | |
658 | bfd_elf_generic_reloc, /* special_function */ | |
659 | "R_RISCV_RVC_BRANCH", /* name */ | |
0a1b45a2 | 660 | false, /* partial_inplace */ |
e23eba97 | 661 | 0, /* src_mask */ |
5a9f5403 | 662 | ENCODE_CBTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 663 | true), /* pcrel_offset */ |
e23eba97 NC |
664 | |
665 | /* 11-bit PC-relative jump offset. */ | |
666 | HOWTO (R_RISCV_RVC_JUMP, /* type */ | |
667 | 0, /* rightshift */ | |
b1b11e92 AM |
668 | 1, /* size */ |
669 | 16, /* bitsize */ | |
0a1b45a2 | 670 | true, /* pc_relative */ |
e23eba97 NC |
671 | 0, /* bitpos */ |
672 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
673 | bfd_elf_generic_reloc, /* special_function */ |
674 | "R_RISCV_RVC_JUMP", /* name */ | |
0a1b45a2 | 675 | false, /* partial_inplace */ |
e23eba97 | 676 | 0, /* src_mask */ |
5a9f5403 | 677 | ENCODE_CJTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 678 | true), /* pcrel_offset */ |
e23eba97 NC |
679 | |
680 | /* High 6 bits of 18-bit absolute address. */ | |
681 | HOWTO (R_RISCV_RVC_LUI, /* type */ | |
682 | 0, /* rightshift */ | |
b1b11e92 AM |
683 | 1, /* size */ |
684 | 16, /* bitsize */ | |
0a1b45a2 | 685 | false, /* pc_relative */ |
e23eba97 NC |
686 | 0, /* bitpos */ |
687 | complain_overflow_dont, /* complain_on_overflow */ | |
688 | bfd_elf_generic_reloc, /* special_function */ | |
689 | "R_RISCV_RVC_LUI", /* name */ | |
0a1b45a2 | 690 | false, /* partial_inplace */ |
e23eba97 | 691 | 0, /* src_mask */ |
5a9f5403 | 692 | ENCODE_CITYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 693 | false), /* pcrel_offset */ |
e23eba97 | 694 | |
1d65abb5 | 695 | /* GP-relative load. */ |
e23eba97 NC |
696 | HOWTO (R_RISCV_GPREL_I, /* type */ |
697 | 0, /* rightshift */ | |
698 | 2, /* size */ | |
699 | 32, /* bitsize */ | |
0a1b45a2 | 700 | false, /* pc_relative */ |
e23eba97 NC |
701 | 0, /* bitpos */ |
702 | complain_overflow_dont, /* complain_on_overflow */ | |
703 | bfd_elf_generic_reloc, /* special_function */ | |
704 | "R_RISCV_GPREL_I", /* name */ | |
0a1b45a2 | 705 | false, /* partial_inplace */ |
e23eba97 NC |
706 | 0, /* src_mask */ |
707 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 708 | false), /* pcrel_offset */ |
e23eba97 | 709 | |
1d65abb5 | 710 | /* GP-relative store. */ |
e23eba97 NC |
711 | HOWTO (R_RISCV_GPREL_S, /* type */ |
712 | 0, /* rightshift */ | |
713 | 2, /* size */ | |
714 | 32, /* bitsize */ | |
0a1b45a2 | 715 | false, /* pc_relative */ |
e23eba97 NC |
716 | 0, /* bitpos */ |
717 | complain_overflow_dont, /* complain_on_overflow */ | |
718 | bfd_elf_generic_reloc, /* special_function */ | |
719 | "R_RISCV_GPREL_S", /* name */ | |
0a1b45a2 | 720 | false, /* partial_inplace */ |
e23eba97 NC |
721 | 0, /* src_mask */ |
722 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 723 | false), /* pcrel_offset */ |
45f76423 AW |
724 | |
725 | /* TP-relative TLS LE load. */ | |
726 | HOWTO (R_RISCV_TPREL_I, /* type */ | |
727 | 0, /* rightshift */ | |
728 | 2, /* size */ | |
729 | 32, /* bitsize */ | |
0a1b45a2 | 730 | false, /* pc_relative */ |
45f76423 AW |
731 | 0, /* bitpos */ |
732 | complain_overflow_signed, /* complain_on_overflow */ | |
733 | bfd_elf_generic_reloc, /* special_function */ | |
734 | "R_RISCV_TPREL_I", /* name */ | |
0a1b45a2 | 735 | false, /* partial_inplace */ |
45f76423 AW |
736 | 0, /* src_mask */ |
737 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 738 | false), /* pcrel_offset */ |
45f76423 AW |
739 | |
740 | /* TP-relative TLS LE store. */ | |
741 | HOWTO (R_RISCV_TPREL_S, /* type */ | |
742 | 0, /* rightshift */ | |
743 | 2, /* size */ | |
744 | 32, /* bitsize */ | |
0a1b45a2 | 745 | false, /* pc_relative */ |
45f76423 AW |
746 | 0, /* bitpos */ |
747 | complain_overflow_signed, /* complain_on_overflow */ | |
748 | bfd_elf_generic_reloc, /* special_function */ | |
749 | "R_RISCV_TPREL_S", /* name */ | |
0a1b45a2 | 750 | false, /* partial_inplace */ |
45f76423 AW |
751 | 0, /* src_mask */ |
752 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 753 | false), /* pcrel_offset */ |
45f76423 AW |
754 | |
755 | /* The paired relocation may be relaxed. */ | |
756 | HOWTO (R_RISCV_RELAX, /* type */ | |
757 | 0, /* rightshift */ | |
758 | 3, /* size */ | |
759 | 0, /* bitsize */ | |
0a1b45a2 | 760 | false, /* pc_relative */ |
45f76423 AW |
761 | 0, /* bitpos */ |
762 | complain_overflow_dont, /* complain_on_overflow */ | |
763 | bfd_elf_generic_reloc, /* special_function */ | |
764 | "R_RISCV_RELAX", /* name */ | |
0a1b45a2 | 765 | false, /* partial_inplace */ |
45f76423 AW |
766 | 0, /* src_mask */ |
767 | 0, /* dst_mask */ | |
0a1b45a2 | 768 | false), /* pcrel_offset */ |
45f76423 AW |
769 | |
770 | /* 6-bit in-place addition, for local label subtraction. */ | |
771 | HOWTO (R_RISCV_SUB6, /* type */ | |
772 | 0, /* rightshift */ | |
773 | 0, /* size */ | |
774 | 8, /* bitsize */ | |
0a1b45a2 | 775 | false, /* pc_relative */ |
45f76423 AW |
776 | 0, /* bitpos */ |
777 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 778 | riscv_elf_add_sub_reloc, /* special_function */ |
45f76423 | 779 | "R_RISCV_SUB6", /* name */ |
0a1b45a2 | 780 | false, /* partial_inplace */ |
45f76423 AW |
781 | 0, /* src_mask */ |
782 | 0x3f, /* dst_mask */ | |
0a1b45a2 | 783 | false), /* pcrel_offset */ |
45f76423 AW |
784 | |
785 | /* 6-bit in-place setting, for local label subtraction. */ | |
786 | HOWTO (R_RISCV_SET6, /* type */ | |
787 | 0, /* rightshift */ | |
788 | 0, /* size */ | |
789 | 8, /* bitsize */ | |
0a1b45a2 | 790 | false, /* pc_relative */ |
45f76423 AW |
791 | 0, /* bitpos */ |
792 | complain_overflow_dont, /* complain_on_overflow */ | |
793 | bfd_elf_generic_reloc, /* special_function */ | |
794 | "R_RISCV_SET6", /* name */ | |
0a1b45a2 | 795 | false, /* partial_inplace */ |
45f76423 AW |
796 | 0, /* src_mask */ |
797 | 0x3f, /* dst_mask */ | |
0a1b45a2 | 798 | false), /* pcrel_offset */ |
45f76423 AW |
799 | |
800 | /* 8-bit in-place setting, for local label subtraction. */ | |
801 | HOWTO (R_RISCV_SET8, /* type */ | |
802 | 0, /* rightshift */ | |
803 | 0, /* size */ | |
804 | 8, /* bitsize */ | |
0a1b45a2 | 805 | false, /* pc_relative */ |
45f76423 AW |
806 | 0, /* bitpos */ |
807 | complain_overflow_dont, /* complain_on_overflow */ | |
808 | bfd_elf_generic_reloc, /* special_function */ | |
809 | "R_RISCV_SET8", /* name */ | |
0a1b45a2 | 810 | false, /* partial_inplace */ |
45f76423 | 811 | 0, /* src_mask */ |
b1b11e92 | 812 | 0xff, /* dst_mask */ |
0a1b45a2 | 813 | false), /* pcrel_offset */ |
45f76423 AW |
814 | |
815 | /* 16-bit in-place setting, for local label subtraction. */ | |
816 | HOWTO (R_RISCV_SET16, /* type */ | |
817 | 0, /* rightshift */ | |
818 | 1, /* size */ | |
819 | 16, /* bitsize */ | |
0a1b45a2 | 820 | false, /* pc_relative */ |
45f76423 AW |
821 | 0, /* bitpos */ |
822 | complain_overflow_dont, /* complain_on_overflow */ | |
823 | bfd_elf_generic_reloc, /* special_function */ | |
824 | "R_RISCV_SET16", /* name */ | |
0a1b45a2 | 825 | false, /* partial_inplace */ |
45f76423 | 826 | 0, /* src_mask */ |
b1b11e92 | 827 | 0xffff, /* dst_mask */ |
0a1b45a2 | 828 | false), /* pcrel_offset */ |
45f76423 AW |
829 | |
830 | /* 32-bit in-place setting, for local label subtraction. */ | |
831 | HOWTO (R_RISCV_SET32, /* type */ | |
832 | 0, /* rightshift */ | |
833 | 2, /* size */ | |
834 | 32, /* bitsize */ | |
0a1b45a2 | 835 | false, /* pc_relative */ |
45f76423 AW |
836 | 0, /* bitpos */ |
837 | complain_overflow_dont, /* complain_on_overflow */ | |
838 | bfd_elf_generic_reloc, /* special_function */ | |
839 | "R_RISCV_SET32", /* name */ | |
0a1b45a2 | 840 | false, /* partial_inplace */ |
45f76423 | 841 | 0, /* src_mask */ |
b1b11e92 | 842 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 843 | false), /* pcrel_offset */ |
a6cbf936 KLC |
844 | |
845 | /* 32-bit PC relative. */ | |
846 | HOWTO (R_RISCV_32_PCREL, /* type */ | |
847 | 0, /* rightshift */ | |
848 | 2, /* size */ | |
849 | 32, /* bitsize */ | |
0a1b45a2 | 850 | true, /* pc_relative */ |
a6cbf936 KLC |
851 | 0, /* bitpos */ |
852 | complain_overflow_dont, /* complain_on_overflow */ | |
853 | bfd_elf_generic_reloc, /* special_function */ | |
854 | "R_RISCV_32_PCREL", /* name */ | |
0a1b45a2 | 855 | false, /* partial_inplace */ |
02dd9d25 NC |
856 | 0, /* src_mask */ |
857 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 858 | false), /* pcrel_offset */ |
02dd9d25 NC |
859 | |
860 | /* Relocation against a local ifunc symbol in a shared object. */ | |
861 | HOWTO (R_RISCV_IRELATIVE, /* type */ | |
862 | 0, /* rightshift */ | |
863 | 2, /* size */ | |
864 | 32, /* bitsize */ | |
0a1b45a2 | 865 | false, /* pc_relative */ |
02dd9d25 NC |
866 | 0, /* bitpos */ |
867 | complain_overflow_dont, /* complain_on_overflow */ | |
868 | bfd_elf_generic_reloc, /* special_function */ | |
869 | "R_RISCV_IRELATIVE", /* name */ | |
0a1b45a2 | 870 | false, /* partial_inplace */ |
a6cbf936 | 871 | 0, /* src_mask */ |
b1b11e92 | 872 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 873 | false), /* pcrel_offset */ |
e23eba97 NC |
874 | }; |
875 | ||
876 | /* A mapping from BFD reloc types to RISC-V ELF reloc types. */ | |
e23eba97 NC |
877 | struct elf_reloc_map |
878 | { | |
879 | bfd_reloc_code_real_type bfd_val; | |
880 | enum elf_riscv_reloc_type elf_val; | |
881 | }; | |
882 | ||
883 | static const struct elf_reloc_map riscv_reloc_map[] = | |
884 | { | |
885 | { BFD_RELOC_NONE, R_RISCV_NONE }, | |
886 | { BFD_RELOC_32, R_RISCV_32 }, | |
887 | { BFD_RELOC_64, R_RISCV_64 }, | |
888 | { BFD_RELOC_RISCV_ADD8, R_RISCV_ADD8 }, | |
889 | { BFD_RELOC_RISCV_ADD16, R_RISCV_ADD16 }, | |
890 | { BFD_RELOC_RISCV_ADD32, R_RISCV_ADD32 }, | |
891 | { BFD_RELOC_RISCV_ADD64, R_RISCV_ADD64 }, | |
892 | { BFD_RELOC_RISCV_SUB8, R_RISCV_SUB8 }, | |
893 | { BFD_RELOC_RISCV_SUB16, R_RISCV_SUB16 }, | |
894 | { BFD_RELOC_RISCV_SUB32, R_RISCV_SUB32 }, | |
895 | { BFD_RELOC_RISCV_SUB64, R_RISCV_SUB64 }, | |
896 | { BFD_RELOC_CTOR, R_RISCV_64 }, | |
897 | { BFD_RELOC_12_PCREL, R_RISCV_BRANCH }, | |
898 | { BFD_RELOC_RISCV_HI20, R_RISCV_HI20 }, | |
899 | { BFD_RELOC_RISCV_LO12_I, R_RISCV_LO12_I }, | |
900 | { BFD_RELOC_RISCV_LO12_S, R_RISCV_LO12_S }, | |
901 | { BFD_RELOC_RISCV_PCREL_LO12_I, R_RISCV_PCREL_LO12_I }, | |
902 | { BFD_RELOC_RISCV_PCREL_LO12_S, R_RISCV_PCREL_LO12_S }, | |
903 | { BFD_RELOC_RISCV_CALL, R_RISCV_CALL }, | |
904 | { BFD_RELOC_RISCV_CALL_PLT, R_RISCV_CALL_PLT }, | |
905 | { BFD_RELOC_RISCV_PCREL_HI20, R_RISCV_PCREL_HI20 }, | |
906 | { BFD_RELOC_RISCV_JMP, R_RISCV_JAL }, | |
907 | { BFD_RELOC_RISCV_GOT_HI20, R_RISCV_GOT_HI20 }, | |
908 | { BFD_RELOC_RISCV_TLS_DTPMOD32, R_RISCV_TLS_DTPMOD32 }, | |
909 | { BFD_RELOC_RISCV_TLS_DTPREL32, R_RISCV_TLS_DTPREL32 }, | |
910 | { BFD_RELOC_RISCV_TLS_DTPMOD64, R_RISCV_TLS_DTPMOD64 }, | |
911 | { BFD_RELOC_RISCV_TLS_DTPREL64, R_RISCV_TLS_DTPREL64 }, | |
912 | { BFD_RELOC_RISCV_TLS_TPREL32, R_RISCV_TLS_TPREL32 }, | |
913 | { BFD_RELOC_RISCV_TLS_TPREL64, R_RISCV_TLS_TPREL64 }, | |
914 | { BFD_RELOC_RISCV_TPREL_HI20, R_RISCV_TPREL_HI20 }, | |
915 | { BFD_RELOC_RISCV_TPREL_ADD, R_RISCV_TPREL_ADD }, | |
916 | { BFD_RELOC_RISCV_TPREL_LO12_S, R_RISCV_TPREL_LO12_S }, | |
917 | { BFD_RELOC_RISCV_TPREL_LO12_I, R_RISCV_TPREL_LO12_I }, | |
918 | { BFD_RELOC_RISCV_TLS_GOT_HI20, R_RISCV_TLS_GOT_HI20 }, | |
919 | { BFD_RELOC_RISCV_TLS_GD_HI20, R_RISCV_TLS_GD_HI20 }, | |
920 | { BFD_RELOC_RISCV_ALIGN, R_RISCV_ALIGN }, | |
921 | { BFD_RELOC_RISCV_RVC_BRANCH, R_RISCV_RVC_BRANCH }, | |
922 | { BFD_RELOC_RISCV_RVC_JUMP, R_RISCV_RVC_JUMP }, | |
923 | { BFD_RELOC_RISCV_RVC_LUI, R_RISCV_RVC_LUI }, | |
924 | { BFD_RELOC_RISCV_GPREL_I, R_RISCV_GPREL_I }, | |
925 | { BFD_RELOC_RISCV_GPREL_S, R_RISCV_GPREL_S }, | |
45f76423 AW |
926 | { BFD_RELOC_RISCV_TPREL_I, R_RISCV_TPREL_I }, |
927 | { BFD_RELOC_RISCV_TPREL_S, R_RISCV_TPREL_S }, | |
928 | { BFD_RELOC_RISCV_RELAX, R_RISCV_RELAX }, | |
929 | { BFD_RELOC_RISCV_SUB6, R_RISCV_SUB6 }, | |
930 | { BFD_RELOC_RISCV_SET6, R_RISCV_SET6 }, | |
931 | { BFD_RELOC_RISCV_SET8, R_RISCV_SET8 }, | |
932 | { BFD_RELOC_RISCV_SET16, R_RISCV_SET16 }, | |
933 | { BFD_RELOC_RISCV_SET32, R_RISCV_SET32 }, | |
a6cbf936 | 934 | { BFD_RELOC_RISCV_32_PCREL, R_RISCV_32_PCREL }, |
e23eba97 NC |
935 | }; |
936 | ||
937 | /* Given a BFD reloc type, return a howto structure. */ | |
938 | ||
939 | reloc_howto_type * | |
940 | riscv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
941 | bfd_reloc_code_real_type code) | |
942 | { | |
943 | unsigned int i; | |
944 | ||
945 | for (i = 0; i < ARRAY_SIZE (riscv_reloc_map); i++) | |
946 | if (riscv_reloc_map[i].bfd_val == code) | |
947 | return &howto_table[(int) riscv_reloc_map[i].elf_val]; | |
948 | ||
949 | bfd_set_error (bfd_error_bad_value); | |
950 | return NULL; | |
951 | } | |
952 | ||
953 | reloc_howto_type * | |
954 | riscv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) | |
955 | { | |
956 | unsigned int i; | |
957 | ||
958 | for (i = 0; i < ARRAY_SIZE (howto_table); i++) | |
959 | if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0) | |
960 | return &howto_table[i]; | |
961 | ||
962 | return NULL; | |
963 | } | |
964 | ||
965 | reloc_howto_type * | |
0aa13fee | 966 | riscv_elf_rtype_to_howto (bfd *abfd, unsigned int r_type) |
e23eba97 NC |
967 | { |
968 | if (r_type >= ARRAY_SIZE (howto_table)) | |
969 | { | |
0aa13fee AM |
970 | (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"), |
971 | abfd, r_type); | |
e23eba97 NC |
972 | bfd_set_error (bfd_error_bad_value); |
973 | return NULL; | |
974 | } | |
975 | return &howto_table[r_type]; | |
976 | } | |
57593436 KLC |
977 | |
978 | /* Special_function of RISCV_ADD and RISCV_SUB relocations. */ | |
979 | ||
980 | static bfd_reloc_status_type | |
981 | riscv_elf_add_sub_reloc (bfd *abfd, | |
982 | arelent *reloc_entry, | |
983 | asymbol *symbol, | |
984 | void *data, | |
985 | asection *input_section, | |
986 | bfd *output_bfd, | |
987 | char **error_message ATTRIBUTE_UNUSED) | |
988 | { | |
989 | reloc_howto_type *howto = reloc_entry->howto; | |
990 | bfd_vma relocation; | |
991 | ||
992 | if (output_bfd != NULL | |
993 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
994 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
995 | { | |
996 | reloc_entry->address += input_section->output_offset; | |
997 | return bfd_reloc_ok; | |
998 | } | |
999 | ||
1000 | if (output_bfd != NULL) | |
1001 | return bfd_reloc_continue; | |
1002 | ||
1003 | relocation = symbol->value + symbol->section->output_section->vma | |
1004 | + symbol->section->output_offset + reloc_entry->addend; | |
1005 | bfd_vma old_value = bfd_get (howto->bitsize, abfd, | |
1006 | data + reloc_entry->address); | |
1007 | ||
1008 | switch (howto->type) | |
1009 | { | |
1010 | case R_RISCV_ADD8: | |
1011 | case R_RISCV_ADD16: | |
1012 | case R_RISCV_ADD32: | |
1013 | case R_RISCV_ADD64: | |
1014 | relocation = old_value + relocation; | |
1015 | break; | |
1016 | case R_RISCV_SUB6: | |
1017 | case R_RISCV_SUB8: | |
1018 | case R_RISCV_SUB16: | |
1019 | case R_RISCV_SUB32: | |
1020 | case R_RISCV_SUB64: | |
1021 | relocation = old_value - relocation; | |
1022 | break; | |
1023 | } | |
1024 | bfd_put (howto->bitsize, abfd, relocation, data + reloc_entry->address); | |
1025 | ||
1026 | return bfd_reloc_ok; | |
1027 | } | |
1080bf78 | 1028 | |
7671eff8 NC |
1029 | /* Always add the IMPLICIT for the SUBSET. */ |
1030 | ||
1031 | static bool | |
1032 | check_implicit_always (const char *implicit ATTRIBUTE_UNUSED, | |
1033 | riscv_subset_t *subset ATTRIBUTE_UNUSED) | |
1034 | { | |
1035 | return true; | |
1036 | } | |
1037 | ||
1038 | /* Add the IMPLICIT only when the version of SUBSET less than 2.1. */ | |
1039 | ||
1040 | static bool | |
1041 | check_implicit_for_i (const char *implicit ATTRIBUTE_UNUSED, | |
1042 | riscv_subset_t *subset) | |
1043 | { | |
1044 | return (subset->major_version < 2 | |
1045 | || (subset->major_version == 2 | |
1046 | && subset->minor_version < 1)); | |
1047 | } | |
1048 | ||
1049 | /* Record all implicit information for the subsets. */ | |
1050 | struct riscv_implicit_subset | |
1051 | { | |
1052 | const char *subset_name; | |
1053 | const char *implicit_name; | |
1054 | /* A function to determine if we need to add the implicit subset. */ | |
1055 | bool (*check_func) (const char *, riscv_subset_t *); | |
1056 | }; | |
1057 | static struct riscv_implicit_subset riscv_implicit_subsets[] = | |
1058 | { | |
1059 | {"e", "i", check_implicit_always}, | |
1060 | {"i", "zicsr", check_implicit_for_i}, | |
1061 | {"i", "zifencei", check_implicit_for_i}, | |
1062 | {"g", "zicsr", check_implicit_always}, | |
1063 | {"g", "zifencei", check_implicit_always}, | |
1064 | {"q", "d", check_implicit_always}, | |
1065 | {"d", "f", check_implicit_always}, | |
1066 | {"f", "zicsr", check_implicit_always}, | |
1067 | {NULL, NULL, NULL} | |
1068 | }; | |
1069 | ||
e601909a NC |
1070 | /* Lists of prefixed class extensions that binutils should know about. |
1071 | Whether or not a particular entry is in these lists will dictate if | |
1072 | gas/ld will accept its presence in the architecture string. | |
1073 | ||
1074 | Please add the extensions to the lists in lower case. However, keep | |
1075 | these subsets in alphabetical order in these tables is recommended, | |
1076 | although there is no impact on the current implementation. */ | |
1077 | ||
1078 | static const char * const riscv_std_z_ext_strtab[] = | |
1079 | { | |
1080 | "zba", "zbb", "zbc", "zicsr", "zifencei", "zihintpause", NULL | |
1081 | }; | |
1082 | ||
1083 | static const char * const riscv_std_s_ext_strtab[] = | |
1084 | { | |
1085 | NULL | |
1086 | }; | |
1087 | ||
1088 | static const char * const riscv_std_h_ext_strtab[] = | |
1089 | { | |
1090 | NULL | |
1091 | }; | |
1092 | ||
1093 | static const char * const riscv_std_zxm_ext_strtab[] = | |
1094 | { | |
1095 | NULL | |
1096 | }; | |
1097 | ||
1098 | /* ISA extension prefixed name class. Must define them in parsing order. */ | |
1099 | enum riscv_prefix_ext_class | |
1100 | { | |
1101 | RV_ISA_CLASS_Z = 1, | |
1102 | RV_ISA_CLASS_S, | |
1103 | RV_ISA_CLASS_H, | |
1104 | RV_ISA_CLASS_ZXM, | |
1105 | RV_ISA_CLASS_X, | |
1106 | RV_ISA_CLASS_UNKNOWN | |
1107 | }; | |
1108 | ||
1109 | /* Record the strings of the prefixed extensions, and their corresponding | |
1110 | classes. The more letters of the prefix string, the more forward it must | |
1111 | be defined. Otherwise, the riscv_get_prefix_class will map it to the | |
1112 | wrong classes. */ | |
1113 | struct riscv_parse_prefix_config | |
1114 | { | |
1115 | /* Class of the extension. */ | |
1116 | enum riscv_prefix_ext_class class; | |
1117 | ||
1118 | /* Prefix string for error printing and internal parser usage. */ | |
1119 | const char *prefix; | |
1120 | }; | |
1121 | static const struct riscv_parse_prefix_config parse_config[] = | |
1122 | { | |
1123 | {RV_ISA_CLASS_ZXM, "zxm"}, | |
1124 | {RV_ISA_CLASS_Z, "z"}, | |
1125 | {RV_ISA_CLASS_S, "s"}, | |
1126 | {RV_ISA_CLASS_H, "h"}, | |
1127 | {RV_ISA_CLASS_X, "x"}, | |
1128 | {RV_ISA_CLASS_UNKNOWN, NULL} | |
1129 | }; | |
1130 | ||
1131 | /* Get the prefixed name class for the extensions, the class also | |
1132 | means the order of the prefixed extensions. */ | |
1133 | ||
1134 | static enum riscv_prefix_ext_class | |
1135 | riscv_get_prefix_class (const char *arch) | |
1136 | { | |
1137 | int i = 0; | |
1138 | while (parse_config[i].class != RV_ISA_CLASS_UNKNOWN) | |
1139 | { | |
1140 | if (strncmp (arch, parse_config[i].prefix, | |
1141 | strlen (parse_config[i].prefix)) == 0) | |
1142 | return parse_config[i].class; | |
1143 | i++; | |
1144 | } | |
1145 | return RV_ISA_CLASS_UNKNOWN; | |
1146 | } | |
1147 | ||
1148 | /* Check KNOWN_EXTS to see if the EXT is supported. */ | |
1149 | ||
1150 | static bool | |
1151 | riscv_known_prefixed_ext (const char *ext, | |
1152 | const char *const *known_exts) | |
1153 | { | |
1154 | size_t i; | |
1155 | for (i = 0; known_exts[i]; ++i) | |
1156 | if (strcmp (ext, known_exts[i]) == 0) | |
1157 | return true; | |
1158 | return false; | |
1159 | } | |
7ef19aa6 | 1160 | |
e601909a NC |
1161 | /* Check whether the prefixed extension is valid or not. Return |
1162 | true if valid, otehrwise return false. */ | |
1163 | ||
1164 | static bool | |
1165 | riscv_valid_prefixed_ext (const char *ext) | |
1166 | { | |
1167 | enum riscv_prefix_ext_class class = riscv_get_prefix_class (ext); | |
1168 | switch (class) | |
1169 | { | |
1170 | case RV_ISA_CLASS_Z: | |
1171 | return riscv_known_prefixed_ext (ext, riscv_std_z_ext_strtab); | |
1172 | case RV_ISA_CLASS_ZXM: | |
1173 | return riscv_known_prefixed_ext (ext, riscv_std_zxm_ext_strtab); | |
1174 | case RV_ISA_CLASS_S: | |
1175 | return riscv_known_prefixed_ext (ext, riscv_std_s_ext_strtab); | |
1176 | case RV_ISA_CLASS_H: | |
1177 | return riscv_known_prefixed_ext (ext, riscv_std_h_ext_strtab); | |
1178 | case RV_ISA_CLASS_X: | |
1179 | /* Only the single x is invalid. */ | |
1180 | if (strcmp (ext, "x") != 0) | |
1181 | return true; | |
1182 | default: | |
1183 | break; | |
1184 | } | |
1185 | return false; | |
1186 | } | |
1187 | ||
1188 | /* Array is used to compare the orders of standard extensions quickly. */ | |
dfe92496 NC |
1189 | static int riscv_ext_order[26] = {0}; |
1190 | ||
e601909a NC |
1191 | /* Init the riscv_ext_order array. */ |
1192 | ||
1193 | static void | |
1194 | riscv_init_ext_order (void) | |
1195 | { | |
1196 | static bool inited = false; | |
1197 | const char *std_base_exts = "eig"; | |
1198 | const char *std_remain_exts = riscv_supported_std_ext (); | |
1199 | const char *ext; | |
1200 | int order; | |
1201 | ||
1202 | if (inited) | |
1203 | return; | |
1204 | ||
1205 | /* The orders of all standard extensions are positive. */ | |
1206 | order = 1; | |
1207 | ||
1208 | /* Init the standard base extensions first. */ | |
1209 | for (ext = std_base_exts; *ext; ext++) | |
1210 | riscv_ext_order[(*ext - 'a')] = order++; | |
1211 | ||
1212 | /* Init the standard remaining extensions. */ | |
1213 | for (ext = std_remain_exts; *ext; ext++) | |
1214 | riscv_ext_order[(*ext - 'a')] = order++; | |
1215 | ||
1216 | /* Some of the prefixed keyword are not single letter, so we set | |
1217 | their prefixed orders in the riscv_compare_subsets directly, | |
1218 | not through the riscv_ext_order. */ | |
1219 | ||
1220 | inited = true; | |
1221 | } | |
1222 | ||
dfe92496 NC |
1223 | /* Similar to the strcmp. It returns an integer less than, equal to, |
1224 | or greater than zero if `subset2` is found, respectively, to be less | |
e601909a NC |
1225 | than, to match, or be greater than `subset1`. |
1226 | ||
1227 | The order values, | |
1228 | Zero: Preserved keywords. | |
1229 | Positive number: Standard extensions. | |
1230 | Negative number: Prefixed keywords. */ | |
dfe92496 | 1231 | |
4c0e540e | 1232 | int |
dfe92496 | 1233 | riscv_compare_subsets (const char *subset1, const char *subset2) |
7ef19aa6 | 1234 | { |
dfe92496 NC |
1235 | int order1 = riscv_ext_order[(*subset1 - 'a')]; |
1236 | int order2 = riscv_ext_order[(*subset2 - 'a')]; | |
7ef19aa6 | 1237 | |
dfe92496 NC |
1238 | /* Compare the standard extension first. */ |
1239 | if (order1 > 0 && order2 > 0) | |
1240 | return order1 - order2; | |
7ef19aa6 | 1241 | |
e601909a NC |
1242 | /* Set the prefixed orders to negative numbers. */ |
1243 | enum riscv_prefix_ext_class class1 = riscv_get_prefix_class (subset1); | |
1244 | enum riscv_prefix_ext_class class2 = riscv_get_prefix_class (subset2); | |
1245 | ||
1246 | if (class1 != RV_ISA_CLASS_UNKNOWN) | |
1247 | order1 = - (int) class1; | |
1248 | if (class2 != RV_ISA_CLASS_UNKNOWN) | |
1249 | order2 = - (int) class2; | |
1250 | ||
1251 | if (order1 == order2) | |
dfe92496 NC |
1252 | { |
1253 | /* Compare the standard addition z extensions. */ | |
e601909a | 1254 | if (class1 == RV_ISA_CLASS_Z) |
dfe92496 NC |
1255 | { |
1256 | order1 = riscv_ext_order[(*++subset1 - 'a')]; | |
1257 | order2 = riscv_ext_order[(*++subset2 - 'a')]; | |
1258 | if (order1 != order2) | |
1259 | return order1 - order2; | |
1260 | } | |
1261 | return strcasecmp (++subset1, ++subset2); | |
1262 | } | |
1263 | ||
1264 | return order2 - order1; | |
1265 | } | |
1266 | ||
1267 | /* Find subset in the list. Return TRUE and set `current` to the subset | |
1268 | if it is found. Otherwise, return FALSE and set `current` to the place | |
1269 | where we should insert the subset. However, return FALSE with the NULL | |
1270 | `current` means we should insert the subset at the head of subset list, | |
1271 | if needed. */ | |
1272 | ||
0a1b45a2 | 1273 | bool |
dfe92496 NC |
1274 | riscv_lookup_subset (const riscv_subset_list_t *subset_list, |
1275 | const char *subset, | |
1276 | riscv_subset_t **current) | |
1277 | { | |
1278 | riscv_subset_t *s, *pre_s = NULL; | |
1279 | ||
1280 | for (s = subset_list->head; | |
1281 | s != NULL; | |
1282 | pre_s = s, s = s->next) | |
1283 | { | |
1284 | int cmp = riscv_compare_subsets (s->name, subset); | |
1285 | if (cmp == 0) | |
1286 | { | |
1287 | *current = s; | |
0a1b45a2 | 1288 | return true; |
dfe92496 NC |
1289 | } |
1290 | else if (cmp > 0) | |
1291 | break; | |
1292 | } | |
1293 | *current = pre_s; | |
0a1b45a2 | 1294 | return false; |
7ef19aa6 NC |
1295 | } |
1296 | ||
dcd709e0 | 1297 | /* Add extension from ISA string to the last of the subset list. */ |
7ef19aa6 NC |
1298 | |
1299 | void | |
1300 | riscv_add_subset (riscv_subset_list_t *subset_list, | |
1301 | const char *subset, | |
1302 | int major, | |
1303 | int minor) | |
1304 | { | |
1305 | riscv_subset_t *s = xmalloc (sizeof *s); | |
1306 | ||
1307 | if (subset_list->head == NULL) | |
1308 | subset_list->head = s; | |
1309 | ||
1310 | s->name = xstrdup (subset); | |
1311 | s->major_version = major; | |
1312 | s->minor_version = minor; | |
1313 | s->next = NULL; | |
1314 | ||
1315 | if (subset_list->tail != NULL) | |
1316 | subset_list->tail->next = s; | |
1317 | subset_list->tail = s; | |
1318 | } | |
1319 | ||
dfe92496 NC |
1320 | /* Add the implicit extension to the subset list. Search the |
1321 | list first, and then find the right place to add. */ | |
1322 | ||
1323 | static void | |
1324 | riscv_add_implicit_subset (riscv_subset_list_t *subset_list, | |
1325 | const char *subset, | |
1326 | int major, | |
1327 | int minor) | |
1328 | { | |
1329 | riscv_subset_t *current, *new; | |
1330 | ||
1331 | if (riscv_lookup_subset (subset_list, subset, ¤t)) | |
1332 | return; | |
1333 | ||
1334 | new = xmalloc (sizeof *new); | |
1335 | new->name = xstrdup (subset); | |
1336 | new->major_version = major; | |
1337 | new->minor_version = minor; | |
1338 | new->next = NULL; | |
1339 | ||
1340 | if (current != NULL) | |
1341 | { | |
1342 | new->next = current->next; | |
1343 | current->next = new; | |
1344 | } | |
1345 | else | |
1346 | { | |
1347 | new->next = subset_list->head; | |
1348 | subset_list->head = new; | |
1349 | } | |
1350 | } | |
1351 | ||
dcd709e0 NC |
1352 | /* We have to add all extensions from ISA string first, and then start to |
1353 | add their implicit extensions. The extensions from ISA string must be | |
dfe92496 NC |
1354 | set in order, so we can add them to the last of the subset list |
1355 | directly, without searching. | |
1356 | ||
1357 | Find the default versions for the extension before adding them to | |
7ef19aa6 NC |
1358 | the subset list, if their versions are RISCV_UNKNOWN_VERSION. |
1359 | Afterwards, report errors if we can not find their default versions. */ | |
1360 | ||
1361 | static void | |
1362 | riscv_parse_add_subset (riscv_parse_subset_t *rps, | |
1363 | const char *subset, | |
1364 | int major, | |
dfe92496 | 1365 | int minor, |
0a1b45a2 | 1366 | bool implicit) |
7ef19aa6 NC |
1367 | { |
1368 | int major_version = major; | |
1369 | int minor_version = minor; | |
1370 | ||
1371 | if ((major_version == RISCV_UNKNOWN_VERSION | |
1372 | || minor_version == RISCV_UNKNOWN_VERSION) | |
1373 | && rps->get_default_version != NULL) | |
1374 | rps->get_default_version (subset, &major_version, &minor_version); | |
1375 | ||
f0bae255 NC |
1376 | /* We don't care the versions of the implicit extensions. */ |
1377 | if (!implicit | |
dfe92496 NC |
1378 | && (major_version == RISCV_UNKNOWN_VERSION |
1379 | || minor_version == RISCV_UNKNOWN_VERSION)) | |
7ef19aa6 NC |
1380 | { |
1381 | if (subset[0] == 'x') | |
1382 | rps->error_handler | |
1383 | (_("x ISA extension `%s' must be set with the versions"), | |
1384 | subset); | |
1385 | else | |
1386 | rps->error_handler | |
1387 | (_("cannot find default versions of the ISA extension `%s'"), | |
1388 | subset); | |
1389 | return; | |
1390 | } | |
1391 | ||
dfe92496 NC |
1392 | if (!implicit) |
1393 | riscv_add_subset (rps->subset_list, subset, | |
1394 | major_version, minor_version); | |
729a5353 | 1395 | else |
dfe92496 NC |
1396 | riscv_add_implicit_subset (rps->subset_list, subset, |
1397 | major_version, minor_version); | |
7ef19aa6 NC |
1398 | } |
1399 | ||
1400 | /* Release subset list. */ | |
1401 | ||
1402 | void | |
1403 | riscv_release_subset_list (riscv_subset_list_t *subset_list) | |
1404 | { | |
1405 | while (subset_list->head != NULL) | |
1406 | { | |
1407 | riscv_subset_t *next = subset_list->head->next; | |
1408 | free ((void *)subset_list->head->name); | |
1409 | free (subset_list->head); | |
1410 | subset_list->head = next; | |
1411 | } | |
1412 | ||
1413 | subset_list->tail = NULL; | |
1414 | } | |
1415 | ||
d541518b | 1416 | /* Parsing extension version. |
1080bf78 JW |
1417 | |
1418 | Return Value: | |
1419 | Points to the end of version | |
1420 | ||
1421 | Arguments: | |
d541518b | 1422 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1423 | `march`: Full ISA string. |
1080bf78 | 1424 | `p`: Curent parsing position. |
7ef19aa6 NC |
1425 | `major_version`: Parsed major version. |
1426 | `minor_version`: Parsed minor version. | |
1427 | `std_ext_p`: True if parsing standard extension. */ | |
1080bf78 JW |
1428 | |
1429 | static const char * | |
1430 | riscv_parsing_subset_version (riscv_parse_subset_t *rps, | |
1431 | const char *march, | |
1432 | const char *p, | |
7ef19aa6 NC |
1433 | int *major_version, |
1434 | int *minor_version, | |
0a1b45a2 | 1435 | bool std_ext_p) |
1080bf78 | 1436 | { |
0a1b45a2 | 1437 | bool major_p = true; |
7ef19aa6 | 1438 | int version = 0; |
1080bf78 JW |
1439 | char np; |
1440 | ||
8f595e9b NC |
1441 | *major_version = 0; |
1442 | *minor_version = 0; | |
1443 | for (; *p; ++p) | |
1080bf78 JW |
1444 | { |
1445 | if (*p == 'p') | |
1446 | { | |
1447 | np = *(p + 1); | |
1448 | ||
1449 | if (!ISDIGIT (np)) | |
1450 | { | |
1451 | /* Might be beginning of `p` extension. */ | |
1452 | if (std_ext_p) | |
1453 | { | |
1454 | *major_version = version; | |
1455 | *minor_version = 0; | |
1456 | return p; | |
1457 | } | |
1458 | else | |
1459 | { | |
8f595e9b | 1460 | rps->error_handler |
d541518b | 1461 | (_("-march=%s: expect number after `%dp'"), |
8f595e9b | 1462 | march, version); |
1080bf78 JW |
1463 | return NULL; |
1464 | } | |
1465 | } | |
1466 | ||
8f595e9b | 1467 | *major_version = version; |
0a1b45a2 | 1468 | major_p = false; |
1080bf78 JW |
1469 | version = 0; |
1470 | } | |
1471 | else if (ISDIGIT (*p)) | |
1472 | version = (version * 10) + (*p - '0'); | |
1473 | else | |
1474 | break; | |
1475 | } | |
1476 | ||
1477 | if (major_p) | |
8f595e9b | 1478 | *major_version = version; |
1080bf78 | 1479 | else |
8f595e9b | 1480 | *minor_version = version; |
1080bf78 | 1481 | |
7ef19aa6 NC |
1482 | /* We can not find any version in string. */ |
1483 | if (*major_version == 0 && *minor_version == 0) | |
1484 | { | |
1485 | *major_version = RISCV_UNKNOWN_VERSION; | |
1486 | *minor_version = RISCV_UNKNOWN_VERSION; | |
1487 | } | |
1488 | ||
1080bf78 JW |
1489 | return p; |
1490 | } | |
1491 | ||
1492 | /* Return string which contain all supported standard extensions in | |
1493 | canonical order. */ | |
1494 | ||
1495 | const char * | |
1496 | riscv_supported_std_ext (void) | |
1497 | { | |
1498 | return "mafdqlcbjtpvn"; | |
1499 | } | |
1500 | ||
1501 | /* Parsing function for standard extensions. | |
1502 | ||
1503 | Return Value: | |
1504 | Points to the end of extensions. | |
1505 | ||
1506 | Arguments: | |
d541518b | 1507 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1508 | `march`: Full ISA string. |
1080bf78 JW |
1509 | `p`: Curent parsing position. */ |
1510 | ||
1511 | static const char * | |
1512 | riscv_parse_std_ext (riscv_parse_subset_t *rps, | |
8f595e9b NC |
1513 | const char *march, |
1514 | const char *p) | |
1080bf78 JW |
1515 | { |
1516 | const char *all_std_exts = riscv_supported_std_ext (); | |
1517 | const char *std_exts = all_std_exts; | |
7ef19aa6 NC |
1518 | int major_version; |
1519 | int minor_version; | |
d541518b | 1520 | char subset[2] = {0, 0}; |
1080bf78 JW |
1521 | |
1522 | /* First letter must start with i, e or g. */ | |
1523 | switch (*p) | |
1524 | { | |
1525 | case 'i': | |
d541518b | 1526 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1527 | &major_version, |
0a1b45a2 | 1528 | &minor_version, true); |
7ef19aa6 NC |
1529 | riscv_parse_add_subset (rps, "i", |
1530 | major_version, | |
0a1b45a2 | 1531 | minor_version, false); |
1080bf78 JW |
1532 | break; |
1533 | ||
1534 | case 'e': | |
d541518b | 1535 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1536 | &major_version, |
0a1b45a2 | 1537 | &minor_version, true); |
7ef19aa6 NC |
1538 | riscv_parse_add_subset (rps, "e", |
1539 | major_version, | |
0a1b45a2 | 1540 | minor_version, false); |
1080bf78 JW |
1541 | if (*rps->xlen > 32) |
1542 | { | |
8f595e9b NC |
1543 | rps->error_handler |
1544 | (_("-march=%s: rv%de is not a valid base ISA"), | |
1545 | march, *rps->xlen); | |
1080bf78 JW |
1546 | return NULL; |
1547 | } | |
1080bf78 JW |
1548 | break; |
1549 | ||
1550 | case 'g': | |
d541518b | 1551 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1552 | &major_version, |
0a1b45a2 | 1553 | &minor_version, true); |
f0bae255 | 1554 | /* Expand g to imafd. */ |
7ef19aa6 | 1555 | riscv_parse_add_subset (rps, "i", |
f5b10973 NC |
1556 | RISCV_UNKNOWN_VERSION, |
1557 | RISCV_UNKNOWN_VERSION, false); | |
1080bf78 JW |
1558 | for ( ; *std_exts != 'q'; std_exts++) |
1559 | { | |
d541518b | 1560 | subset[0] = *std_exts; |
7ef19aa6 NC |
1561 | riscv_parse_add_subset (rps, subset, |
1562 | RISCV_UNKNOWN_VERSION, | |
0a1b45a2 | 1563 | RISCV_UNKNOWN_VERSION, false); |
1080bf78 | 1564 | } |
f0bae255 NC |
1565 | /* Add g as an implicit extension. */ |
1566 | riscv_parse_add_subset (rps, "g", | |
1567 | RISCV_UNKNOWN_VERSION, | |
1568 | RISCV_UNKNOWN_VERSION, true); | |
1080bf78 JW |
1569 | break; |
1570 | ||
1571 | default: | |
8f595e9b | 1572 | rps->error_handler |
d541518b NC |
1573 | (_("-march=%s: first ISA extension must be `e', `i' or `g'"), |
1574 | march); | |
1080bf78 JW |
1575 | return NULL; |
1576 | } | |
1577 | ||
8f595e9b | 1578 | while (p != NULL && *p != '\0') |
1080bf78 | 1579 | { |
e601909a NC |
1580 | /* Stop when we parsed the known prefix class. */ |
1581 | enum riscv_prefix_ext_class class = riscv_get_prefix_class (p); | |
1582 | if (class != RV_ISA_CLASS_UNKNOWN) | |
1080bf78 JW |
1583 | break; |
1584 | ||
1585 | if (*p == '_') | |
1586 | { | |
1587 | p++; | |
1588 | continue; | |
1589 | } | |
1590 | ||
1080bf78 | 1591 | /* Checking canonical order. */ |
d541518b NC |
1592 | char std_ext = *p; |
1593 | while (*std_exts && std_ext != *std_exts) | |
1594 | std_exts++; | |
1080bf78 JW |
1595 | |
1596 | if (std_ext != *std_exts) | |
1597 | { | |
e601909a | 1598 | if (riscv_ext_order[(std_ext - 'a')] == 0) |
8f595e9b | 1599 | rps->error_handler |
e601909a NC |
1600 | (_("-march=%s: unknown standard and prefixed ISA " |
1601 | "extension `%s'"), march, p); | |
1080bf78 | 1602 | else |
8f595e9b | 1603 | rps->error_handler |
d541518b NC |
1604 | (_("-march=%s: standard ISA extension `%c' is not " |
1605 | "in canonical order"), march, std_ext); | |
1080bf78 JW |
1606 | return NULL; |
1607 | } | |
1608 | ||
1609 | std_exts++; | |
1080bf78 | 1610 | subset[0] = std_ext; |
d541518b | 1611 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1612 | &major_version, |
0a1b45a2 | 1613 | &minor_version, true); |
7ef19aa6 NC |
1614 | riscv_parse_add_subset (rps, subset, |
1615 | major_version, | |
0a1b45a2 | 1616 | minor_version, false); |
1080bf78 | 1617 | } |
d541518b | 1618 | |
1080bf78 JW |
1619 | return p; |
1620 | } | |
1621 | ||
d541518b NC |
1622 | /* Parsing function for prefixed extensions. |
1623 | ||
1624 | Return Value: | |
1625 | Points to the end of extension. | |
1626 | ||
1627 | Arguments: | |
1628 | `rps`: Hooks and status for parsing extensions. | |
dcd709e0 | 1629 | `march`: Full ISA string. |
e3839c10 | 1630 | `p`: Curent parsing position. */ |
1080bf78 JW |
1631 | |
1632 | static const char * | |
403d1bd9 JW |
1633 | riscv_parse_prefixed_ext (riscv_parse_subset_t *rps, |
1634 | const char *march, | |
e601909a | 1635 | const char *p) |
1080bf78 | 1636 | { |
7ef19aa6 NC |
1637 | int major_version; |
1638 | int minor_version; | |
403d1bd9 | 1639 | const char *last_name; |
e601909a | 1640 | enum riscv_prefix_ext_class class; |
1080bf78 JW |
1641 | |
1642 | while (*p) | |
1643 | { | |
1644 | if (*p == '_') | |
1645 | { | |
1646 | p++; | |
1647 | continue; | |
1648 | } | |
1649 | ||
403d1bd9 | 1650 | class = riscv_get_prefix_class (p); |
e601909a NC |
1651 | if (class == RV_ISA_CLASS_UNKNOWN) |
1652 | { | |
1653 | rps->error_handler | |
1654 | (_("-march=%s: unknown prefix class for the ISA extension `%s'"), | |
1655 | march, p); | |
1656 | return NULL; | |
1657 | } | |
1080bf78 JW |
1658 | |
1659 | char *subset = xstrdup (p); | |
1660 | char *q = subset; | |
1661 | const char *end_of_version; | |
1662 | ||
1663 | while (*++q != '\0' && *q != '_' && !ISDIGIT (*q)) | |
1664 | ; | |
1665 | ||
1666 | end_of_version = | |
d541518b NC |
1667 | riscv_parsing_subset_version (rps, march, q, |
1668 | &major_version, | |
0a1b45a2 | 1669 | &minor_version, false); |
1080bf78 JW |
1670 | *q = '\0'; |
1671 | ||
7ef19aa6 NC |
1672 | if (end_of_version == NULL) |
1673 | { | |
1674 | free (subset); | |
1675 | return NULL; | |
1676 | } | |
1677 | ||
e601909a | 1678 | /* Check if the prefix extension is known. |
403d1bd9 | 1679 | For 'x', anything goes but it cannot simply be 'x'. |
e3839c10 NC |
1680 | For other prefixed extensions, it must be known from a list |
1681 | and cannot simply be the prefixed name. */ | |
403d1bd9 JW |
1682 | |
1683 | /* Check that the extension name is well-formed. */ | |
fe1f847d NC |
1684 | if (rps->check_unknown_prefixed_ext |
1685 | && !riscv_valid_prefixed_ext (subset)) | |
403d1bd9 JW |
1686 | { |
1687 | rps->error_handler | |
e601909a NC |
1688 | (_("-march=%s: unknown prefixed ISA extension `%s'"), |
1689 | march, subset); | |
403d1bd9 JW |
1690 | free (subset); |
1691 | return NULL; | |
1692 | } | |
1693 | ||
d541518b | 1694 | /* Check that the extension isn't duplicate. */ |
403d1bd9 | 1695 | last_name = rps->subset_list->tail->name; |
403d1bd9 JW |
1696 | if (!strcasecmp (last_name, subset)) |
1697 | { | |
8f595e9b | 1698 | rps->error_handler |
e601909a NC |
1699 | (_("-march=%s: duplicate prefixed ISA extension `%s'"), |
1700 | march, subset); | |
403d1bd9 JW |
1701 | free (subset); |
1702 | return NULL; | |
1703 | } | |
1704 | ||
e601909a | 1705 | /* Check that the extension is in expected order. */ |
6729e2c2 | 1706 | if (riscv_compare_subsets (last_name, subset) > 0) |
403d1bd9 | 1707 | { |
8f595e9b | 1708 | rps->error_handler |
e601909a | 1709 | (_("-march=%s: prefixed ISA extension `%s' is not in expected " |
d541518b | 1710 | "order. It must come before `%s'"), |
e601909a | 1711 | march, subset, last_name); |
403d1bd9 JW |
1712 | free (subset); |
1713 | return NULL; | |
1714 | } | |
1715 | ||
7ef19aa6 NC |
1716 | riscv_parse_add_subset (rps, subset, |
1717 | major_version, | |
0a1b45a2 | 1718 | minor_version, false); |
1080bf78 | 1719 | p += end_of_version - subset; |
e9cf3691 | 1720 | free (subset); |
1080bf78 JW |
1721 | |
1722 | if (*p != '\0' && *p != '_') | |
1723 | { | |
d541518b | 1724 | rps->error_handler |
e601909a NC |
1725 | (_("-march=%s: prefixed ISA extension must separate with _"), |
1726 | march); | |
1080bf78 JW |
1727 | return NULL; |
1728 | } | |
1729 | } | |
1730 | ||
1731 | return p; | |
1732 | } | |
1733 | ||
dcd709e0 | 1734 | /* Add the implicit extensions. */ |
dfe92496 NC |
1735 | |
1736 | static void | |
1737 | riscv_parse_add_implicit_subsets (riscv_parse_subset_t *rps) | |
1738 | { | |
7671eff8 NC |
1739 | struct riscv_implicit_subset *t = riscv_implicit_subsets; |
1740 | for (; t->subset_name; t++) | |
dfe92496 | 1741 | { |
7671eff8 NC |
1742 | riscv_subset_t *subset = NULL; |
1743 | if (riscv_lookup_subset (rps->subset_list, t->subset_name, &subset) | |
1744 | && t->check_func (t->implicit_name, subset)) | |
1745 | riscv_parse_add_subset (rps, t->implicit_name, | |
1746 | RISCV_UNKNOWN_VERSION, | |
1747 | RISCV_UNKNOWN_VERSION, true); | |
00d4d1b0 | 1748 | } |
dfe92496 NC |
1749 | } |
1750 | ||
dcd709e0 | 1751 | /* Function for parsing ISA string. |
1080bf78 JW |
1752 | |
1753 | Return Value: | |
1754 | Return TRUE on success. | |
1755 | ||
1756 | Arguments: | |
d541518b | 1757 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1758 | `arch`: Full ISA string. */ |
1080bf78 | 1759 | |
0a1b45a2 | 1760 | bool |
1080bf78 JW |
1761 | riscv_parse_subset (riscv_parse_subset_t *rps, |
1762 | const char *arch) | |
1763 | { | |
dfe92496 | 1764 | riscv_subset_t *subset = NULL; |
e8d4709e | 1765 | const char *p; |
0a1b45a2 | 1766 | bool no_conflict = true; |
1080bf78 | 1767 | |
e8d4709e NC |
1768 | for (p = arch; *p != '\0'; p++) |
1769 | { | |
1770 | if (ISUPPER (*p)) | |
1771 | { | |
1772 | rps->error_handler | |
1773 | (_("-march=%s: ISA string cannot contain uppercase letters"), | |
1774 | arch); | |
0a1b45a2 | 1775 | return false; |
e8d4709e NC |
1776 | } |
1777 | } | |
1778 | ||
1779 | p = arch; | |
3f3328b8 | 1780 | if (startswith (p, "rv32")) |
1080bf78 JW |
1781 | { |
1782 | *rps->xlen = 32; | |
1783 | p += 4; | |
1784 | } | |
3f3328b8 | 1785 | else if (startswith (p, "rv64")) |
1080bf78 JW |
1786 | { |
1787 | *rps->xlen = 64; | |
1788 | p += 4; | |
1789 | } | |
1790 | else | |
1791 | { | |
dcd709e0 NC |
1792 | /* ISA string shouldn't be NULL or empty here. However, |
1793 | it might be empty only when we failed to merge the ISA | |
72bd6912 KC |
1794 | string in the riscv_merge_attributes. We have already |
1795 | issued the correct error message in another side, so do | |
dcd709e0 | 1796 | not issue this error when the ISA string is empty. */ |
72bd6912 KC |
1797 | if (strlen (arch)) |
1798 | rps->error_handler ( | |
1799 | _("-march=%s: ISA string must begin with rv32 or rv64"), | |
1800 | arch); | |
0a1b45a2 | 1801 | return false; |
1080bf78 JW |
1802 | } |
1803 | ||
dfe92496 NC |
1804 | /* Init the riscv_ext_order array to compare the order of extensions |
1805 | quickly. */ | |
1806 | riscv_init_ext_order (); | |
1807 | ||
1080bf78 JW |
1808 | /* Parsing standard extension. */ |
1809 | p = riscv_parse_std_ext (rps, arch, p); | |
1810 | ||
1811 | if (p == NULL) | |
0a1b45a2 | 1812 | return false; |
1080bf78 | 1813 | |
403d1bd9 | 1814 | /* Parse the different classes of extensions in the specified order. */ |
e601909a | 1815 | while (*p != '\0') |
d541518b | 1816 | { |
e601909a | 1817 | p = riscv_parse_prefixed_ext (rps, arch, p); |
1080bf78 | 1818 | |
d541518b | 1819 | if (p == NULL) |
e601909a | 1820 | return false; |
1080bf78 JW |
1821 | } |
1822 | ||
dfe92496 NC |
1823 | /* Finally add implicit extensions according to the current |
1824 | extensions. */ | |
1825 | riscv_parse_add_implicit_subsets (rps); | |
1826 | ||
d541518b | 1827 | /* Check the conflicts. */ |
dfe92496 NC |
1828 | if (riscv_lookup_subset (rps->subset_list, "e", &subset) |
1829 | && riscv_lookup_subset (rps->subset_list, "f", &subset)) | |
1080bf78 | 1830 | { |
8f595e9b NC |
1831 | rps->error_handler |
1832 | (_("-march=%s: rv32e does not support the `f' extension"), | |
1833 | arch); | |
0a1b45a2 | 1834 | no_conflict = false; |
1080bf78 | 1835 | } |
dfe92496 NC |
1836 | if (riscv_lookup_subset (rps->subset_list, "q", &subset) |
1837 | && *rps->xlen < 64) | |
d541518b NC |
1838 | { |
1839 | rps->error_handler | |
1840 | (_("-march=%s: rv32 does not support the `q' extension"), | |
1841 | arch); | |
0a1b45a2 | 1842 | no_conflict = false; |
d541518b | 1843 | } |
7ef19aa6 | 1844 | return no_conflict; |
1080bf78 | 1845 | } |
2dc8dd17 JW |
1846 | |
1847 | /* Return the number of digits for the input. */ | |
1848 | ||
8f595e9b | 1849 | size_t |
2dc8dd17 JW |
1850 | riscv_estimate_digit (unsigned num) |
1851 | { | |
1852 | size_t digit = 0; | |
1853 | if (num == 0) | |
1854 | return 1; | |
1855 | ||
1856 | for (digit = 0; num ; num /= 10) | |
1857 | digit++; | |
1858 | ||
1859 | return digit; | |
1860 | } | |
1861 | ||
1862 | /* Auxiliary function to estimate string length of subset list. */ | |
1863 | ||
1864 | static size_t | |
1865 | riscv_estimate_arch_strlen1 (const riscv_subset_t *subset) | |
1866 | { | |
1867 | if (subset == NULL) | |
1868 | return 6; /* For rv32/rv64/rv128 and string terminator. */ | |
1869 | ||
1870 | return riscv_estimate_arch_strlen1 (subset->next) | |
1871 | + strlen (subset->name) | |
1872 | + riscv_estimate_digit (subset->major_version) | |
dcd709e0 | 1873 | + 1 /* For version seperator 'p'. */ |
2dc8dd17 JW |
1874 | + riscv_estimate_digit (subset->minor_version) |
1875 | + 1 /* For underscore. */; | |
1876 | } | |
1877 | ||
1878 | /* Estimate the string length of this subset list. */ | |
1879 | ||
1880 | static size_t | |
1881 | riscv_estimate_arch_strlen (const riscv_subset_list_t *subset_list) | |
1882 | { | |
1883 | return riscv_estimate_arch_strlen1 (subset_list->head); | |
1884 | } | |
1885 | ||
1886 | /* Auxiliary function to convert subset info to string. */ | |
1887 | ||
1888 | static void | |
1889 | riscv_arch_str1 (riscv_subset_t *subset, | |
1890 | char *attr_str, char *buf, size_t bufsz) | |
1891 | { | |
1892 | const char *underline = "_"; | |
729a5353 | 1893 | riscv_subset_t *subset_t = subset; |
2dc8dd17 | 1894 | |
729a5353 | 1895 | if (subset_t == NULL) |
2dc8dd17 JW |
1896 | return; |
1897 | ||
dcd709e0 | 1898 | /* No underline between rvXX and i/e. */ |
729a5353 NC |
1899 | if ((strcasecmp (subset_t->name, "i") == 0) |
1900 | || (strcasecmp (subset_t->name, "e") == 0)) | |
2dc8dd17 JW |
1901 | underline = ""; |
1902 | ||
1903 | snprintf (buf, bufsz, "%s%s%dp%d", | |
1904 | underline, | |
729a5353 NC |
1905 | subset_t->name, |
1906 | subset_t->major_version, | |
1907 | subset_t->minor_version); | |
2dc8dd17 JW |
1908 | |
1909 | strncat (attr_str, buf, bufsz); | |
1910 | ||
729a5353 NC |
1911 | /* Skip 'i' extension after 'e', or skip extensions which |
1912 | versions are unknown. */ | |
1913 | while (subset_t->next | |
1914 | && ((strcmp (subset_t->name, "e") == 0 | |
1915 | && strcmp (subset_t->next->name, "i") == 0) | |
1916 | || subset_t->next->major_version == RISCV_UNKNOWN_VERSION | |
1917 | || subset_t->next->minor_version == RISCV_UNKNOWN_VERSION)) | |
1918 | subset_t = subset_t->next; | |
1919 | ||
1920 | riscv_arch_str1 (subset_t->next, attr_str, buf, bufsz); | |
2dc8dd17 JW |
1921 | } |
1922 | ||
dcd709e0 | 1923 | /* Convert subset information into string with explicit versions. */ |
2dc8dd17 JW |
1924 | |
1925 | char * | |
1926 | riscv_arch_str (unsigned xlen, const riscv_subset_list_t *subset) | |
1927 | { | |
1928 | size_t arch_str_len = riscv_estimate_arch_strlen (subset); | |
1929 | char *attr_str = xmalloc (arch_str_len); | |
1930 | char *buf = xmalloc (arch_str_len); | |
1931 | ||
1932 | snprintf (attr_str, arch_str_len, "rv%u", xlen); | |
1933 | ||
1934 | riscv_arch_str1 (subset->head, attr_str, buf, arch_str_len); | |
1935 | free (buf); | |
1936 | ||
1937 | return attr_str; | |
1938 | } |